The SOUTHWIRE F40021-1A cable is an 18 AWG 2-conductor unshielded FPLR/CMR/CL3R cable designed for fire protective signaling circuits. It is suitable for smoke detectors, voice communications, audio control, and initiating circuits, adhering to Article 760 of the NEC. This cable features a solid bare copper conductor and LS-PVC insulation, with an operating temperature range of -10°C to 60°C.
Designed for fire protective signaling circuits, smoke detectors, and voice communications.
Meets Article 760 of the NEC for safety and compliance.
Features a rip cord for ease of jacket removal during installation.
Product Highlights
This unshielded 18 AWG 2-conductor cable is riser rated, sunlight-resistant, and operates between -10°C and 60°C, ideal for various fire alarm applications.
Product Information
Standard Information
Brand: SOUTHWIRE
Manufacturer Part Number: F40021-1A
Country of Origin: United States
Technical Specifications
Brand
Southwire
MPN
F40021-1A
Cable Type
Type FPLR Unshielded
Conductor Size
18 AWG
Number of Conductors
2
Conductor Type
Solid bare copper per ASTM B3
Conductor Strands
Solid
Outer Diameter
0.200 inch
Insulation Thickness
10 mils
Jacket Thickness
15 mils
Copper Weight per 1000 ft
10 lbs
Approximate Weight per 1000 ft
18 lbs
DC Resistance at 25C
6.669 ohms
AC Resistance at 75C
8.030 ohms
Inductive Reactance
0.036 ohms
Minimum Bend Radius
0.8 inch
Allowable Ampacity Raceway 90C
14
Jacket Color
Red
Conductor Color
White
Insulation Material
Low Smoke Polyvinyl Chloride (LS-PVC)
Rip Cord Feature
Rip cord for ease of jacket removal
Jacket Material
Low Smoke Polyvinyl Chloride (LS-PVC)
Standards/Approvals
UL 1424 Cables for Power-Limited Fire-Alarm Circuits, ASTM B3 Soft or Annealed Copper Wire, UL1424 Listed FPLR, NFPA 70, NFPA 101, NFPA 130, NFPA 502, UL 13 Power-Limited Circuit Cables, UL 444 Communications Cables (22 AWG - 16 AWG), RoHS-2 (European Directive 2011/65/EU), ARRA Compliant, Buy American Act Compliant, UL 1666, NEC Article 760
Series
341UR
Length
1000 ft
Voltage Rating
300 VAC
Operating Temperature Range
-10°C to 60°C
Application
Fire Protective Signaling Circuits, Smoke Detectors, Voice Communications, Audio Control, Initiating Circuits and Plenum Spaces Applications